A single-step, single-inductor energy-harvestingbased power supply platform with a regulated battery charger for mobile applications

An energy-harvesting-based power supply platform for mobile applications such as cell phones, tablets and laptops is presented. The proposed platform combines the process of Maximum Power Point Tracking (MPPT) from the energy-harvesting source with the process of generating a regulated power supply...

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Main Authors: Abdelmoaty, Ahmed A., Fayed, Ayman
Format: Conference Proceeding
Language:English
Subjects:
Batteries
Inductors
Maximum power point trackers
Power conversion
Switches
Voltage control
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creator Abdelmoaty, Ahmed A.
Fayed, Ayman
description An energy-harvesting-based power supply platform for mobile applications such as cell phones, tablets and laptops is presented. The proposed platform combines the process of Maximum Power Point Tracking (MPPT) from the energy-harvesting source with the process of generating a regulated power supply together in a single power conversion step. Therefore, it achieves higher efficiency than conventional platforms where two cascaded power conversion stages are required to maintain both MPPT and voltage regulation. Moreover, the proposed platform incorporates a battery charger that leverages the excess energy beyond the load demand to charge a battery in a regulated manner following the Constant Current Constant Voltage (CCCV) procedure, and thus ensures safe charging compared to conventional platforms. When the harvested energy is less than the load demand, the charger provides the difference by routing energy from the battery to the load in order to maintain regulation at all times. The proposed platform is implemented in 0.25μm standard CMOS technology and system level simulations are presented to demonstrate the system functionality under various operating scenarios.
doi_str_mv 10.1109/APEC.2015.7104421
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subjects Batteries
Inductors
Maximum power point trackers
Power conversion
Switches
Voltage control
title A single-step, single-inductor energy-harvestingbased power supply platform with a regulated battery charger for mobile applications
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